"Last week a large, profitable company sued a small start-up business for patent infringement. As a non-legal person, I can only guess that this sort of thing must happen fairly often. I would also guess that the large companies, which have the means to hire crackerjack legal teams and drag cases out, must often win. And while I guess I feel bad for the small businesses, I've never really cared before now. Because this time, the stakes are high. This time, it's my daughter's voice on the line. Literally." Infuriating. Maybe these are the kinds of stories we need to get normal people to care enough to force lawmakers to change. Sadly, the big bags of money from Apple, Microsoft, and Oracle are probably far more important to them than this sad story.

The issue you face is that if the developer looses the lawsuit or withdraws the app voluntarily you won't be able to get future versions of the app (bug fixes or enhancements).

If this does happen my suggestion to you would be to ask the developer to open source this app so that the community can continue to update and support it. I would certainly be more than happy to help as well as to supply you with a build for your specific device.